Visual differences 2 Benchmarking 1 Bottom-up attention 1 Capacity data 1 Carrier images 1 Color 1 Colour image 1 Data extraction 1 Data hiding technologies 1 Data mining 1 Data-hiding 1 Deep neural networks 1 Discriminative features 1 Fine grained 1 Global and local informations 1 Image processing 1 Instance retrieval 1 Large dataset 1 Network-based 1 Pulse amplitude modulation 1 Salient regions 1 Secret images 1 Steganography 1 Top-down attention 1 Topdown 1 Vehicle instance retrieval 1 Vehicles 1 Visual effects 1 bottom-up attention 1 top-down attention 1